Need help & feeling guilty. 10 points?

Last night I had a sleepover with my friends. We wanted to play this trick to whoever fell asleep. The trick was where we'd spray a sweet scent onto a paper towel and put it on a sleeping persons face for 5 minutes. Then their subconscious could answer any yes or no question truthfully. Well, they thought I was asleep when I really wasnt so they "played" a trick on me. When they asked the questions (for like an hour) I answered with yes or no. They thought it worked and they were so excited, fascinated about my subconcious, and freaking out. Now I feel really bad/guilty that I really tricked them and made them think it worked. What should I do? Do you think they'll be mad at me?